/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.s2graph.core

import org.apache.s2graph.core.schema.ColumnMeta
import org.apache.s2graph.core.types.InnerValLike

object S2VertexPropertyHelper {
  def propertyValue(v: S2VertexLike, key: String): Option[InnerValLike] = {
    key match {
      case "id" => Option(v.innerId)
      case _ =>
        v.serviceColumn.metasInvMap.get(key).map(x => propertyValueInner(v, x))
    }
  }


  def propertyValuesInner(vertex: S2VertexLike, columnMetas: Seq[ColumnMeta] = Nil): Map[ColumnMeta, InnerValLike] = {
    if (columnMetas.isEmpty) {
      vertex.serviceColumn.metaPropsDefaultMap.map { case (columnMeta, defaultVal) =>
        columnMeta -> propertyValueInner(vertex, columnMeta)
      }
    } else {
      (ColumnMeta.reservedMetas ++ columnMetas).map { columnMeta =>
        columnMeta -> propertyValueInner(vertex, columnMeta)
      }.toMap
    }
  }

  def propertyValueInner(vertex: S2VertexLike, columnMeta: ColumnMeta): InnerValLike = {
    if (vertex.props.containsKey(columnMeta.name)) {
      vertex.props.get(columnMeta.name).innerVal
    } else {
      vertex.serviceColumn.metaPropsDefaultMap(columnMeta)
    }
  }

  def toColumnMetas(vertex: S2VertexLike, keys: Seq[String]): Seq[ColumnMeta] = {
    for {
      key <- keys
      columnMeta <- vertex.serviceColumn.metasInvMap.get(key)
    } yield columnMeta
  }
}
